拟南芥
乙烯
非生物胁迫
非生物成分
基因
基因表达
生物
细胞生物学
开枪
耐旱性
多年生植物
转基因作物
脱落酸
转录因子
转基因
植物
化学
光合作用
叶绿素
园艺
突变体
脯氨酸
拟南芥
生物化学
生态学
催化作用
作者
Changying Liu,Jun Li,Panpan Zhu,Jian Yu,Jiamin Hou,Chuanhong Wang,Dingpei Long,Maode Yu,Aichun Zhao
出处
期刊:PeerJ
[PeerJ]
日期:2019-02-19
卷期号:7: e6391-e6391
被引量:16
摘要
Ethylene regulates plant abiotic stress responses and tolerances, and ethylene-insensitive3 (EIN3)/EIN3-like (EIL) proteins are the key components of ethylene signal transduction. Although the functions of EIN3/EIL proteins in response to abiotic stresses have been investigated in model plants, little is known in non-model plants, including mulberry ( Morus L.), which is an economically important perennial woody plant. We functionally characterized a gene encoding an EIN3-like protein from mulberry, designated as MnEIL3 . A quantitative real-time PCR analysis demonstrated that the expression of MnEIL3 could be induced in roots and shoot by salt and drought stresses. Arabidopsis overexpressing MnEIL3 exhibited an enhanced tolerance to salt and drought stresses. MnEIL3 overexpression in Arabidopsis significantly upregulated the transcript abundances of ethylene biosynthetic genes. Furthermore, MnEIL3 enhanced the activities of the MnACO1 and MnACS1 promoters, which respond to salt and drought stresses. Thus, MnEIL3 may play important roles in tolerance to abiotic stresses and the expression of ethylene biosynthetic genes.
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